Kitchen range or pressure boiler



(No Model.)

J. H. ASH.-

KITOHEN RANGE 0R PRESSURE BOILER.

Patented Nov. 16', 18 86.

Wi l-messes STATES] PATENT cam.

" JOSEPH HOWELL ASH, OF BROOKLYN, NEW 011K.

' KITCHEN RANGE OR PRESSURE BOILER.

SPECIFICATION forming part of Letters Patent No. 352,847,6lated November 16, 1886 Application filed April 13, 1885. Serial No: l62.094. (No model.)

To all whom it 'may-c0ncern:

Be it known that I, JOSEPH HOWELL -ASH, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Kitchen Range or Pressure Boilers; and I do declare the follow ing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to theletters and figures of reference marked thereon, which form a part of this specification.

My invention relates to improvements in boilers or reservoirs subject to high pressure; and it has for its object to make a joint between the head and main body which will sustain a higher degree of pressure than hasbeen possible in devices of similar character heretofore known.

The particular nature of my invention will hereinafter be fully described, and specifically 'pointed out in the claims.

any ordinary form, having open ends, into which the end piece or head b fits snugly. The

head b is provided with the depending rim b,

which fits snugly into the open end and against the sides of the casing, where it is secured by a sweat-joint,and has the usual ports, b b ,the one port being for the ingress of water orsteam, in the ordinary manner.

c is the outer ring or band, adapted to slide over and fit snugly against the side of the boiler shell or body a, and it has a wire, 0 spun into its inner end, as shown, so as to form a. shoulder,against which the driving-tool will strike. Its outer end is provided with an inwardly-turned flange or rim, 0, which laps over and fits snugly upon the outer portion of the head b and over the joint between the said rim and easing.

. When the parts are placed together,as shown in Fig. 3, the head will be flush with and the flange of rim 0 of the outer ring or band will rest on the end of the shell or body a and overlap the outer portions of the head and the intervening joint. The band cencircles the shell and embraces the head,and is secured to each by a sweatejoint.

The head and retaining-band are secured to the body by a sweat-joint, formed in any well-known manner-f0r instance, by placing a small quantity of solder'up'on the joint and melting it by heating the body, when it (the solder) will flow and fill the space between the sides of the body and the sides of the rim of the head and the band and its overlapping flange. As but very little solder is employed, owingto the close proximity of the adjacent faces'of the parts, a mere film of the metal intervenes between said parts, and a perfect steam-tight joint will be maintained at all times, inasmuch as the joint will not be affected by heat or cold, because the several parts will expand and contract equally and simultaneously.

I make the head 0 and the rim b of the head approximately of the same width; but this is a matter of preference only. 7 When the joint is completed, I have a soldered surface equal to the united lengths of the .band a and the rim b. Thetwo soldered surfaces being supported by the overlapping flange c soldered to the head, makes a perfectly secure joint, and one not affecting the strength of the body.

Boilers as ordinarily constructed are weakest at the point of junction of the head with the body, owing to the removal of the metal for the passage of the rivets and the amount of strain produced by the upsetting of such rivets. By my construction the head is not only firmly secured in place, but the boiler is stronger at its point of junction with the head than at any other point.

Having thus described my invention, what I claim, and desire to secure by Letters Patent,

1. The combination of the boiler-shell, the head formed with a rim snugly fitting within the shell, and the ring formed of a portion tightly encircling the shell, and an inwardlyprojecting portion tightly embracing the head,

the three parts being secured together by ing overthejunction between therirnandshell, sweatjoints. and resting upon the top of the head, and se- 2. The herein shown and described boilercured to the shell and head by a sweat-joint, shell, in combination with 1neans,as set forth, substantially as set forth.

5 for heading the smne,eonsistingofthe head hav- In testimony whereof I affix my signature in 15 ing inlet and egress ports, and adepending rim presence of two witnesses.

snugly fitted within the open end of the shell JOSEPH HOWVELL ASH. and secured in place by a sweat joint, and the Witnesses: ring snugly fitting the exterior of the shell, and CLARA D. ASH,

IO having an inwardly-projecting flange extend- J. H. ASH, Jr. 

